A new version of EhoCW is out, with a lot of differences compared to previous 0.92

The portaudio low level library sound is now used by EhoCW, this enables to use the Windows 7 WASAPI library, ASIO, DirectX, and so on. The best latency results are obtained with ASIO with an ASIO sound card or with the ASIO4ALL driver wich enables many sound cards to be used with ASIO.

If you don't want to use ASIO, then choose WASAPI in the option screen.

The morse decoder has been removed from this version, but for those who liked it, you can download (or keep) the previous version. The decoder is now a new project, and will be ported from Borland C++ to Qt C++ technology, and will be multi platform (Windows, Mac, Linux).

It is now possible to connect one or two double keys plus one or two straight keys (with com ports).

The sound generator has been improved, there is no more 'clicks' in the morse sound. This has been intensively tested by Chuck AA0HW, and the signal is very nice with no harmonics at all. Chuck also made some videos published on youtube and on his website (http://qrqcwnet.ning.com/), the videos are available at :

09/03/2010 : V0.91g. New version with vocal possibilities to spell text.

A new 'play' button has been added to the 'Text screen'. Four new commands have been added (\Sayl, \Sayil, \SayStart, \SayStop ). See documentation for usage information. There is two vocal wav files you can choose from (french voice and english voice) from the option screen, to spell your text. Thanks to Paul,kd8kuf for giving his voice. The size of the setup has increased to 13 Mb.

05/02/2010 : A new version has been published (Alpha 0.91c), Should work with Windows Seven.

26/01/2010 : A new version has been published (Alpha version 0.91b updated 25/01/2010), go to the download page to get it, and see the changelog page to see what has changed.

1st of october /2009 :New language has been added to the language file (EhoCWL.ini), now you can use italian language. Thanks to Enzo, I8BVW for his great translation effort. You can download the new file here : EhoCWL.ini and copy it into you EhoCW installation folder.

09/02/2009 New minor version (0.90g). Only bug fixing and cosmetics changes for this new version.

Bug corrections : The estimated decoding speed is now correct, The "program exception" when successively changing the keyer frequency has gone.

You can take benefits from new german translation from Uwe Lauer (future OM),